Page 443 - Foton Workshop Manual - Auman EST-M
P. 443

Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts   DI - 389

              Failure phenomenon list                                                                             IN

              Use the list below to help you find the reasons of failures. The number represents the order of failure reason
              possibility. Check each part according to the order and replace it when necessary.                  DI

                  Failure phenomenon                 Possible reason                 Failure elimination
                                                                                                                  EG
                                        1. Horn fuse                           Replace the same spec fuse

                                        2. Horn relay                          Repair or replace the relay
                                                                                                                  TR
                                        3. Circuit from horn relay to horn switch   Repair or replace harness

              Horn no sound             4. Horn switch                         Repair or replace the horn switch   AX

                                        5. Power circuit from horn relay to horn switch   Repair or replace harness
                                                                                                                  FR
                                        6. Horn                                Repair or replace the horn

                                        7. Horn earth circuit                  Repair or replace harness
                                                                                                                  ST
                                        1. Horn relay                          Repair or replace the relay

              Horn always sounds        2. Horn switch                         Repair or replace the horn switch   BR

                                        3. Circuit from horn relay to horn switch   Repair or replace harness
                                                                                                                  BW



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